Revert "mtd_blkdevs: don't scan partitions for plain mtdblock"

This reverts commit 776b54e9.

Looks like a last minute edit snuck into this patch, and as a result,
it doesn't even compile. Revert the change for now.
Signed-off-by: NJens Axboe <axboe@kernel.dk>

drivers/mtd/mtd_blkdevs.c

@@ -346,7 +346,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
 	gd->minors = 1 << tr->part_bits;
 	gd->fops = &mtd_block_ops;
 
-	if (tr->part_bits) {
+	if (tr->part_bits)
 		if (new->devnum < 26)
 			snprintf(gd->disk_name, sizeof(gd->disk_name),
 				 "%s%c", tr->name, 'a' + new->devnum);
@@ -355,11 +355,9 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
 				 "%s%c%c", tr->name,
 				 'a' - 1 + new->devnum / 26,
 				 'a' + new->devnum % 26);
-	} else {
+	else
 		snprintf(gd->disk_name, sizeof(gd->disk_name),
 			 "%s%d", tr->name, new->devnum);
-		gd->flags |= GENHD_FL_NO_PART;
-	}
 
 	set_capacity(gd, ((u64)new->size * tr->blksize) >> 9);